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M&S

3 Pack Heatgen™ Maximum Warmth Thermal Socks

£16

Colour

Customers say:

Fits true to size()
Size

Free standard delivery over £60

Product code: T104466

About this style

Made for maximum warmth, these thermal socks feature innovative Heatgen™ technology that helps generate and retain heat during colder weather. The material includes added stretch for superb comfort, while the practical three-pack ensures you're well-stocked for the season. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Maximum warmth for keeping cosy in colder climates.

Details & care

Style

Product Style: Thermal socks

Features

Heatgen™ technology

lightweight and supersoft, designed to keep you warm when the weather gets chilly

Composition

52% acrylic, 35% polypropylene, 6% polyamide, 6% polyester and 1% elastane

Care

Wash at 40°C

Do not bleach

Tumble dry medium temperature

Do not iron

Do not dry clean

Delivery, collection & returns

Delivery

Standard

UK Standard Delivery is available for £3.99 or free on orders over £60 (excluding furniture).

Nominated Day

UK Next Day Delivery and UK Nominated Day Delivery (excluding Northern Ireland) are available for £5.99 (excluding furniture)

Collection

Collect from store

Store collection is free on all fashion, home and beauty orders.

Returns

UK returns

Free

Exclusions apply

Full delivery and collection informationOur returns policy

Reviews (528)

4.5

63% Recommended this product

Mentions
14 January 2026NIR
Verified Purchase

Cosy and comfortable

Yes, I recommend this

Warm socks- not too thick and not too tight - a bit pricey but worth it

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 January 2026Val08
Verified Purchase

Great quality

Yes, I recommend this

My husband loves these. He suffers with poor circulation in his feet and these help keep them warm on cold days. They wash well too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

13 January 2026Frequentor
Verified Purchase

Cosy and warm

Yes, I recommend this

Bought these thermal socks for winter. I am really pleased with them. Now have warm and cosy feet outdoors.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

13 January 2026SunshineBaba2
Verified Purchase

Socks Appeal

Yes, I recommend this

Perfect for wearing inside my new hiking boots, comfortable, warm and a good fit.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 January 2026Bob CD
Verified Purchase

thermal socks

Socks were what i required And deliver to store which i picked up

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

12 January 2026DFoxon
Verified Purchase

Great quality at a good price.

Just what I was looking for in this cold weather, very warm and snug.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 January 2026Frances 80
Verified Purchase

Warm feet!

Part of Christmas present and husband at last has warm(ish) feet!

Helpful?

11 January 2026ClippyB
Verified Purchase

My Toes are Toasty

Yes, I recommend this

Great value and great fit. Overall a great product.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

11 January 2026Awful delivery
Verified Purchase

Great socks

Yes, I recommend this

Bought for husband who complains about cold feet, these socks are excellent, no more moaning !

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 January 2026Georgie1802
Verified Purchase

Winter Must-Have

Yes, I recommend this

Super warm and really comfy. My husband loves them and wears them all the time now. Perfect for cold days.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

08 January 2026Bill the Dog Walker
Verified Purchase

Heatgen Maximum Warmth Thermal Socks - Not Great

No, I don't recommend this

Personally not overly impressed with these socks! After spending so much on two packs as well. First time on using them, the back of the heel went all bobbley / pilled (pilling)! I thought it was maybe down to the energetic movement I have taken up, (since the Christmas break), but subsequent new pairs worn have also done the same! I would of been better off buying 3 times as many from the market or a certain, (direct), sports shop! At the rate they are wearing, (per day .... then wash), they will not last long! After note is .... They are however cosy and warm!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 January 2026megiemags
Verified Purchase

Great for cold weather 🥶

Yes, I recommend this

Brought as a Xmas present for someone who’s feet are always cold & he’s very happy with them for cold winter days

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

05 January 2026Bolton
Verified Purchase

Thermal with Maximum warmth

Yes, I recommend this

Heatgen Thermal socks perfect for Maximum warmth and holiday in Iceland

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

02 January 2026KFBall
Verified Purchase

Soft and comfortable

Yes, I recommend this

Bought for husband who suffers with the cold. He says tjey are soft and comfortable to wear and nice and warm

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 January 2026Jagga1
Verified Purchase

Slightly Tight Fitting

Yes, I recommend this

Smart socks but feel slightly tight. Very good value though!

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

01 January 2026RogWest69
Verified Purchase

Comfortable and warm

Yes, I recommend this

Bought as a present. Apparently comfortable to wear and warm

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 December 2025Shiatsua
Verified Purchase

He likes warm feet.

Mr Grumpy likes his feet toasty especially when he's camping.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

31 December 2025Lindel1
Verified Purchase

Value for your money

Great purchase perfect winter warmer. Value for your money . Great quality.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 December 2025EmmaKathryn
Verified Purchase

Great socks

Yes, I recommend this

All good, wash well, warm. A reasonable price. Good length.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

28 December 2025Running beetroot
Verified Purchase

Very cosy socks

Yes, I recommend this

Warm cosy socks. Very comfortable to wear. Not a lot more to say!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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